Travel with Axel,
get the best price.

Dulles → San Antonio

Choose your travel dates

IAD → SAT1 adulteconomy

24 flight options · 3 airlines

Round-trip flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
5:55 pmIAD
3h 54m
Nonstop
8:49 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
6:00 amIAD
7h 26m
CLT · 2h 32m
12:26 pmSAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

Delta Air Lines
12:34 pmIAD
5h 50m
ATL · 1h 12m
5:24 pmSAT
Delta Air Lines
4:00 pmSAT
6h 10m
DTW · 1h 25m
11:10 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
5:55 pmIAD
3h 54m
Nonstop
8:49 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
8:25 amIAD
3h 53m
Nonstop
11:18 amSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
8:25 amIAD
3h 53m
Nonstop
11:18 amSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

American Airlines
5:50 pmIAD
7h 17m
DFW · 2h 22m
12:07 am+1SAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:10 amIAD
7h 32m
ORD · 1h 53m
12:42 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Show 8 more flights

Fri, Nov 27 – Fri, Dec 4

United Airlines
6:00 amIAD
8h 6m
IAH · 3h 19m
1:06 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 27 – Fri, Dec 4

United Airlines
8:25 amIAD
7h 42m
EWR · 1h 57m
3:07 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
6:00 amIAD
7h 26m
CLT · 2h 32m
12:26 pmSAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

American Airlines
5:50 pmIAD
7h 17m
DFW · 2h 22m
12:07 am+1SAT
American Airlines
11:23 amSAT
5h 51m
DFW · 1h 41m
6:14 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

Delta Air Lines
12:34 pmIAD
5h 50m
ATL · 1h 12m
5:24 pmSAT
Delta Air Lines
4:00 pmSAT
6h 10m
DTW · 1h 25m
11:10 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
8:25 amIAD
7h 42m
EWR · 1h 57m
3:07 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:00 amIAD
8h 6m
IAH · 3h 19m
1:06 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

Fri, Nov 20 – Mon, Nov 23

United Airlines
6:10 amIAD
7h 32m
ORD · 1h 53m
12:42 pmSAT
United Airlines
12:25 pmSAT
3h 10m
Nonstop
4:35 pmIAD

Round-trip total · 1 adult · Taxes included

One-way flights

Fri, Nov 20 · One way

United Airlines
5:55 pmIAD
3h 54m
Nonstop
8:49 pmSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
6:00 amIAD
7h 26m
CLT · 2h 32m
12:26 pmSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

Delta Air Lines
12:34 pmIAD
5h 50m
ATL · 1h 12m
5:24 pmSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
8:25 amIAD
3h 53m
Nonstop
11:18 amSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
8:25 amIAD
7h 42m
EWR · 1h 57m
3:07 pmSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:00 amIAD
8h 6m
IAH · 3h 19m
1:06 pmSAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

American Airlines
5:50 pmIAD
7h 17m
DFW · 2h 22m
12:07 am+1SAT

One-way total · 1 adult · Taxes included

Fri, Nov 20 · One way

United Airlines
6:10 amIAD
7h 32m
ORD · 1h 53m
12:42 pmSAT

One-way total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ SAT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, United Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • 24-hour cancellationCancel within 24 hours of booking for a full refund when your departure is at least 7 days away. Closer to departure, the airline’s fare rules apply. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

Nov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-11-20 · one wayUnited AirlinesUA1869$260.002026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA1869 / UA2250$431.252026-10-29T01:07:59Z
2026-11-20 · one wayAmerican AirlinesAA5649 + AA1977$227.502026-10-29T01:07:59Z
2026-11-20 · one wayDelta Air LinesDL1444 + DL1465$240.502026-10-29T01:07:59Z
2026-11-27 → 2026-12-04American AirlinesAA5649 + AA1977 / AA413 + AA2414$379.502026-10-29T01:07:59Z
2026-11-27 → 2026-12-04Delta Air LinesDL1444 + DL1465 / DL2193 + DL4704$402.502026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA1869 / UA2250$487.502026-10-29T01:07:59Z
2026-11-20 · one wayUnited AirlinesUA1789$260.002026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA1789 / UA2250$431.252026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA1789 / UA2250$487.502026-10-29T01:07:59Z
2026-11-20 · one wayUnited AirlinesUA2396 + UA515$227.502026-10-29T01:07:59Z
2026-11-20 · one wayUnited AirlinesUA451 + UA468$227.502026-10-29T01:07:59Z
2026-11-20 · one wayAmerican AirlinesAA2414 + AA2281$227.502026-10-29T01:07:59Z
2026-11-20 · one wayUnited AirlinesUA565 + UA446$227.502026-10-29T01:07:59Z
2026-11-27 → 2026-12-04American AirlinesAA2414 + AA2281 / AA413 + AA2414$379.502026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA565 + UA446 / UA2250$402.002026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA451 + UA468 / UA2250$402.002026-10-29T01:07:59Z
2026-11-27 → 2026-12-04United AirlinesUA2396 + UA515 / UA2250$402.002026-10-29T01:07:59Z
2026-11-20 → 2026-11-23American AirlinesAA5649 + AA1977 / AA413 + AA2414$429.002026-10-29T01:07:59Z
2026-11-20 → 2026-11-23American AirlinesAA2414 + AA2281 / AA413 + AA2414$429.002026-10-29T01:07:59Z
2026-11-20 → 2026-11-23Delta Air LinesDL1444 + DL1465 / DL2193 + DL4704$455.002026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA2396 + UA515 / UA2250$458.252026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA451 + UA468 / UA2250$458.252026-10-29T01:07:59Z
2026-11-20 → 2026-11-23United AirlinesUA565 + UA446 / UA2250$458.252026-10-29T01:07:59Z

2026-11-20 · one way · $260.00

  • United Airlines UA1869: IAD 2026-11-20 17:55:00 → SAT 2026-11-20 20:49:00; nonstop; 234 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $431.25

  • United Airlines UA1869: IAD 2026-11-27 17:55:00 → SAT 2026-11-27 20:49:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-12-04 12:25:00 → IAD 2026-12-04 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 · one way · $227.50

  • American Airlines AA5649 / AA1977: IAD 2026-11-20 06:00:00 → SAT 2026-11-20 12:26:00; 1 stop(s) via CLT; 446 minutes. Local airport times.
    • AA5649: IAD 2026-11-20 06:00:00 → CLT 2026-11-20 07:48:00; layover at CLT: 152 minutes.
    • AA1977: CLT 2026-11-20 10:20:00 → SAT 2026-11-20 12:26:00.

2026-11-20 · one way · $240.50

  • Delta Air Lines DL1444 / DL1465: IAD 2026-11-20 12:34:00 → SAT 2026-11-20 17:24:00; 1 stop(s) via ATL; 350 minutes. Local airport times.
    • DL1444: IAD 2026-11-20 12:34:00 → ATL 2026-11-20 14:31:00; layover at ATL: 72 minutes.
    • DL1465: ATL 2026-11-20 15:43:00 → SAT 2026-11-20 17:24:00.

2026-11-27 → 2026-12-04 · $379.50

  • American Airlines AA5649 / AA1977: IAD 2026-11-27 06:00:00 → SAT 2026-11-27 12:26:00; 1 stop(s) via CLT; 446 minutes. Local airport times.
    • AA5649: IAD 2026-11-27 06:00:00 → CLT 2026-11-27 07:48:00; layover at CLT: 152 minutes.
    • AA1977: CLT 2026-11-27 10:20:00 → SAT 2026-11-27 12:26:00.
  • American Airlines AA413 / AA2414: SAT 2026-12-04 11:23:00 → IAD 2026-12-04 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-12-04 11:23:00 → DFW 2026-12-04 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-12-04 14:26:00 → IAD 2026-12-04 18:14:00.

2026-11-27 → 2026-12-04 · $402.50

  • Delta Air Lines DL1444 / DL1465: IAD 2026-11-27 12:34:00 → SAT 2026-11-27 17:24:00; 1 stop(s) via ATL; 350 minutes. Local airport times.
    • DL1444: IAD 2026-11-27 12:34:00 → ATL 2026-11-27 14:31:00; layover at ATL: 72 minutes.
    • DL1465: ATL 2026-11-27 15:43:00 → SAT 2026-11-27 17:24:00.
  • Delta Air Lines DL2193 / DL4704: SAT 2026-12-04 16:00:00 → IAD 2026-12-04 23:10:00; 1 stop(s) via DTW; 370 minutes. Local airport times.
    • DL2193: SAT 2026-12-04 16:00:00 → DTW 2026-12-04 20:05:00; layover at DTW: 85 minutes.
    • DL4704: DTW 2026-12-04 21:30:00 → IAD 2026-12-04 23:10:00.

2026-11-20 → 2026-11-23 · $487.50

  • United Airlines UA1869: IAD 2026-11-20 17:55:00 → SAT 2026-11-20 20:49:00; nonstop; 234 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-11-23 12:25:00 → IAD 2026-11-23 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 · one way · $260.00

  • United Airlines UA1789: IAD 2026-11-20 08:25:00 → SAT 2026-11-20 11:18:00; nonstop; 233 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $431.25

  • United Airlines UA1789: IAD 2026-11-27 08:25:00 → SAT 2026-11-27 11:18:00; nonstop; 233 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-12-04 12:25:00 → IAD 2026-12-04 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $487.50

  • United Airlines UA1789: IAD 2026-11-20 08:25:00 → SAT 2026-11-20 11:18:00; nonstop; 233 minutes. Local airport times.
  • United Airlines UA2250: SAT 2026-11-23 12:25:00 → IAD 2026-11-23 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 · one way · $227.50

  • United Airlines UA2396 / UA515: IAD 2026-11-20 08:25:00 → SAT 2026-11-20 15:07:00; 1 stop(s) via EWR; 462 minutes. Local airport times.
    • UA2396: IAD 2026-11-20 08:25:00 → EWR 2026-11-20 09:47:00; layover at EWR: 117 minutes.
    • UA515: EWR 2026-11-20 11:44:00 → SAT 2026-11-20 15:07:00.

2026-11-20 · one way · $227.50

  • United Airlines UA451 / UA468: IAD 2026-11-20 06:00:00 → SAT 2026-11-20 13:06:00; 1 stop(s) via IAH; 486 minutes. Local airport times.
    • UA451: IAD 2026-11-20 06:00:00 → IAH 2026-11-20 08:36:00; layover at IAH: 199 minutes.
    • UA468: IAH 2026-11-20 11:55:00 → SAT 2026-11-20 13:06:00.

2026-11-20 · one way · $227.50

  • American Airlines AA2414 / AA2281: IAD 2026-11-20 17:50:00 → SAT 2026-11-21 00:07:00; 1 stop(s) via DFW; 437 minutes. Local airport times.
    • AA2414: IAD 2026-11-20 17:50:00 → DFW 2026-11-20 20:30:00; layover at DFW: 142 minutes.
    • AA2281: DFW 2026-11-20 22:52:00 → SAT 2026-11-21 00:07:00.

2026-11-20 · one way · $227.50

  • United Airlines UA565 / UA446: IAD 2026-11-20 06:10:00 → SAT 2026-11-20 12:42:00; 1 stop(s) via ORD; 452 minutes. Local airport times.
    • UA565: IAD 2026-11-20 06:10:00 → ORD 2026-11-20 07:32:00; layover at ORD: 113 minutes.
    • UA446: ORD 2026-11-20 09:25:00 → SAT 2026-11-20 12:42:00.

2026-11-27 → 2026-12-04 · $379.50

  • American Airlines AA2414 / AA2281: IAD 2026-11-27 17:50:00 → SAT 2026-11-28 00:07:00; 1 stop(s) via DFW; 437 minutes. Local airport times.
    • AA2414: IAD 2026-11-27 17:50:00 → DFW 2026-11-27 20:30:00; layover at DFW: 142 minutes.
    • AA2281: DFW 2026-11-27 22:52:00 → SAT 2026-11-28 00:07:00.
  • American Airlines AA413 / AA2414: SAT 2026-12-04 11:23:00 → IAD 2026-12-04 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-12-04 11:23:00 → DFW 2026-12-04 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-12-04 14:26:00 → IAD 2026-12-04 18:14:00.

2026-11-27 → 2026-12-04 · $402.00

  • United Airlines UA565 / UA446: IAD 2026-11-27 06:10:00 → SAT 2026-11-27 12:42:00; 1 stop(s) via ORD; 452 minutes. Local airport times.
    • UA565: IAD 2026-11-27 06:10:00 → ORD 2026-11-27 07:32:00; layover at ORD: 113 minutes.
    • UA446: ORD 2026-11-27 09:25:00 → SAT 2026-11-27 12:42:00.
  • United Airlines UA2250: SAT 2026-12-04 12:25:00 → IAD 2026-12-04 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $402.00

  • United Airlines UA451 / UA468: IAD 2026-11-27 06:00:00 → SAT 2026-11-27 13:06:00; 1 stop(s) via IAH; 486 minutes. Local airport times.
    • UA451: IAD 2026-11-27 06:00:00 → IAH 2026-11-27 08:36:00; layover at IAH: 199 minutes.
    • UA468: IAH 2026-11-27 11:55:00 → SAT 2026-11-27 13:06:00.
  • United Airlines UA2250: SAT 2026-12-04 12:25:00 → IAD 2026-12-04 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-27 → 2026-12-04 · $402.00

  • United Airlines UA2396 / UA515: IAD 2026-11-27 08:25:00 → SAT 2026-11-27 15:07:00; 1 stop(s) via EWR; 462 minutes. Local airport times.
    • UA2396: IAD 2026-11-27 08:25:00 → EWR 2026-11-27 09:47:00; layover at EWR: 117 minutes.
    • UA515: EWR 2026-11-27 11:44:00 → SAT 2026-11-27 15:07:00.
  • United Airlines UA2250: SAT 2026-12-04 12:25:00 → IAD 2026-12-04 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $429.00

  • American Airlines AA5649 / AA1977: IAD 2026-11-20 06:00:00 → SAT 2026-11-20 12:26:00; 1 stop(s) via CLT; 446 minutes. Local airport times.
    • AA5649: IAD 2026-11-20 06:00:00 → CLT 2026-11-20 07:48:00; layover at CLT: 152 minutes.
    • AA1977: CLT 2026-11-20 10:20:00 → SAT 2026-11-20 12:26:00.
  • American Airlines AA413 / AA2414: SAT 2026-11-23 11:23:00 → IAD 2026-11-23 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-11-23 11:23:00 → DFW 2026-11-23 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-11-23 14:26:00 → IAD 2026-11-23 18:14:00.

2026-11-20 → 2026-11-23 · $429.00

  • American Airlines AA2414 / AA2281: IAD 2026-11-20 17:50:00 → SAT 2026-11-21 00:07:00; 1 stop(s) via DFW; 437 minutes. Local airport times.
    • AA2414: IAD 2026-11-20 17:50:00 → DFW 2026-11-20 20:30:00; layover at DFW: 142 minutes.
    • AA2281: DFW 2026-11-20 22:52:00 → SAT 2026-11-21 00:07:00.
  • American Airlines AA413 / AA2414: SAT 2026-11-23 11:23:00 → IAD 2026-11-23 18:14:00; 1 stop(s) via DFW; 351 minutes. Local airport times.
    • AA413: SAT 2026-11-23 11:23:00 → DFW 2026-11-23 12:45:00; layover at DFW: 101 minutes.
    • AA2414: DFW 2026-11-23 14:26:00 → IAD 2026-11-23 18:14:00.

2026-11-20 → 2026-11-23 · $455.00

  • Delta Air Lines DL1444 / DL1465: IAD 2026-11-20 12:34:00 → SAT 2026-11-20 17:24:00; 1 stop(s) via ATL; 350 minutes. Local airport times.
    • DL1444: IAD 2026-11-20 12:34:00 → ATL 2026-11-20 14:31:00; layover at ATL: 72 minutes.
    • DL1465: ATL 2026-11-20 15:43:00 → SAT 2026-11-20 17:24:00.
  • Delta Air Lines DL2193 / DL4704: SAT 2026-11-23 16:00:00 → IAD 2026-11-23 23:10:00; 1 stop(s) via DTW; 370 minutes. Local airport times.
    • DL2193: SAT 2026-11-23 16:00:00 → DTW 2026-11-23 20:05:00; layover at DTW: 85 minutes.
    • DL4704: DTW 2026-11-23 21:30:00 → IAD 2026-11-23 23:10:00.

2026-11-20 → 2026-11-23 · $458.25

  • United Airlines UA2396 / UA515: IAD 2026-11-20 08:25:00 → SAT 2026-11-20 15:07:00; 1 stop(s) via EWR; 462 minutes. Local airport times.
    • UA2396: IAD 2026-11-20 08:25:00 → EWR 2026-11-20 09:47:00; layover at EWR: 117 minutes.
    • UA515: EWR 2026-11-20 11:44:00 → SAT 2026-11-20 15:07:00.
  • United Airlines UA2250: SAT 2026-11-23 12:25:00 → IAD 2026-11-23 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $458.25

  • United Airlines UA451 / UA468: IAD 2026-11-20 06:00:00 → SAT 2026-11-20 13:06:00; 1 stop(s) via IAH; 486 minutes. Local airport times.
    • UA451: IAD 2026-11-20 06:00:00 → IAH 2026-11-20 08:36:00; layover at IAH: 199 minutes.
    • UA468: IAH 2026-11-20 11:55:00 → SAT 2026-11-20 13:06:00.
  • United Airlines UA2250: SAT 2026-11-23 12:25:00 → IAD 2026-11-23 16:35:00; nonstop; 190 minutes. Local airport times.

2026-11-20 → 2026-11-23 · $458.25

  • United Airlines UA565 / UA446: IAD 2026-11-20 06:10:00 → SAT 2026-11-20 12:42:00; 1 stop(s) via ORD; 452 minutes. Local airport times.
    • UA565: IAD 2026-11-20 06:10:00 → ORD 2026-11-20 07:32:00; layover at ORD: 113 minutes.
    • UA446: ORD 2026-11-20 09:25:00 → SAT 2026-11-20 12:42:00.
  • United Airlines UA2250: SAT 2026-11-23 12:25:00 → IAD 2026-11-23 16:35:00; nonstop; 190 minutes. Local airport times.

More dates for this route